Re: Oracle memory allocation on Linux 2.6

On Apr 14, 9:39 pm, NetComrade <netcomradeNS..._at_bookexchange.net>
wrote:
> On Fri, 4 Apr 2008 23:24:54 -0700 (PDT), vitalis..._at_gmail.com wrote:> >On 2 avr, 18:16, NetComrade <netcomradeNS..._at_bookexchange.net> wrote:>> >> >Do you have FILSYSTEMIO_OPTIONS set to either "SETALL" or "DIRECTIO"?> >> >In my experience, that will significantly reduce the use of caches.>> >> Have you tried playing with Veritas/ODM?>> >I've never used ODM. But is it compatible with OCFS2?>> Sorry, no clue.. my understanding with OCFS, an oracle supplied FS,> double buffering shouldn't be an issue... but i never used it... was> 'fortunate' enough to work with ADM

Could you please explain why this "double buffering" is wanted? And
have you found a means of inhibiting it altogether (using Direct IO on
Linux/OCFS2 does not do it according to my tests and a few messages
found on the net)?